2019届中考数学复习核心素养专题(二)练习.doc

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核心素养专题强化训练1.阅读下列材料,并用相关的思想方法解决问题。计算: 1111-+-+23452345234。令 +=t,得原式= ()tt-22145ttt+。问题:解方程(x 2+5x+1) (x 2+5x+7)=7。2.小明用下面的方法 求出方程 2 x-3=0 的 解 ,请你仿照他的方法求出下面另外两个 方程的解,并把你的 解答 过 程填写在下面的表格 中。参考答案

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